The Bureau of Land Management (BLM) sells mineral materials under the authority of the Materials Act of 1947, as amended.1 These mineral materials consist of common types of sand and gravel, stone, pumice, or other materials used mainly in construction and landscaping. The United States uses about 2 billion tons of mineral materials annually. In fiscal year 2011, BLM issued about 2,800 contracts and permits to sell mineral materials, including 2,616 sales valued at approximately $17 million, as well as instances of free use for public purposes such as State and local roadway projects.